// Copyright (c) Brock Allen & Dominick Baier. All rights reserved.
// Licensed under the Apache License, Version 2.0. See LICENSE in the project root for license information.

using System;
using System.Collections.Generic;
using System.Linq;

namespace IdentityServer.Quickstart.Account;

using System;
using System.Collections.Generic;
using System.Linq;

public class LoginViewModel : LoginInputModel
{
    public bool AllowRememberLogin { get; set; } = true;
    public bool EnableLocalLogin { get; set; } = true;

    public IEnumerable<ExternalProvider> ExternalProviders { get; set; } = Enumerable.Empty<ExternalProvider>();

    public IEnumerable<ExternalProvider> VisibleExternalProviders =>
        ExternalProviders.Where(x => !string.IsNullOrWhiteSpace(x.DisplayName));

    public bool IsExternalLoginOnly => EnableLocalLogin == false && ExternalProviders?.Count() == 1;

    public string ExternalLoginScheme => IsExternalLoginOnly
        ? ExternalProviders?.SingleOrDefault()?.AuthenticationScheme
        : null;
}
